Home / 51,239.90-70,712.82-29,728.02

Finding the Fourth Proportional to 51,239.90, 70,712.82 and 29,728.02

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Solution

The fourth proportional to 51,239.90, 70,712.82 and 29,728.02 is: 41,025.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,239.90 : 70,712.82 = 29,728.02 : x
  2. Step 2: Convert to fraction form
    51,239.90/70,712.82 = 29,728.02/x
  3. Step 3: Cross multiply
    51,239.90x = 70,712.82 × 29,728.02
  4. Step 4: Simplify right side
    51,239.90x = 2,102,152,127.22
  5. Step 5: Solve for x
    x = 2,102,152,127.22/51,239.90
  6. Step 6: Final answer
    x = 41,025.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.